Haematological and blood biochemical characteristics of Glyptosternum maculatum (Siluriformes: Sisoridae) in Xizang (Tibet).

This study investigated the haematological and blood biochemical characteristics of Glyptosternum maculatum. The haematological and biochemical parameters were measured in 30 adult fish collected from Nyingchi Reach of Yarlung Zangbo River in Tibet. The red blood cell count (RBC), haemoglobin concentration (Hb), haematocrit (Hct), erythrocyte osmotic fragility (maxEof and minEof), the erythrocyte sedimentation rate, mean cell volume (MCV), mean cellular haemoglobin content (MCH), and mean cell haemoglobin concentration (MCHC) were determined. Compared with other Siluriformes fishes, G. maculatum showed similar mean values for Hct, Hb, MCH, and MCHC and had slightly lower RBC and higher MCV. The biochemical parameters were assayed including alanine aminotransferase, aspartate aminotransferase (AST), alkaline phosphatase, total protein, albumin, globulin, albumin/globulin ratio, total bilirubin, direct bilirubin, urea, creatinine, glucose, total cholesterol, and triglyceride. The result showed that the value of AST in G. maculatum was obviously higher than that in Rhamdia quelen as well as in Silurus merdionalis.